Just a small tealight holder I designed a while back. The lights I used came from Party City and measure approximately 37.5 mm in diameter.

While a normal tealight candle will fit, and I have done it for short spans of time, we are dealing with plastic here. Using an open flame, even a small one, unattended near plastic could have very real dangers. Please only use with LED type lights.

Silver - Solutech PLA at 0.15 mm layer heights Transparent - Nova Maker PLA 0.15 mm layer heights White - Nova Maker PLA 0.3 mm layer heights Blue - Nova Maker PLA 0.3 mm layer heights